Search a number
-
+
87255300 = 2235211137193
BaseRepresentation
bin1010011001101…
…10100100000100
320002012000202210
411030312210010
5134314132200
612354103420
72106441426
oct514664404
9202160683
1087255300
1145287220
122527ab70
1315100872
14b834816
1579d8650
hex5336904

87255300 has 144 divisors (see below), whose sum is σ = 278857152. Its totient is φ = 20889600.

The previous prime is 87255281. The next prime is 87255319. The reversal of 87255300 is 355278.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87255281) and next prime (87255319).

It is a super-2 number, since 2×872553002 = 15226974756180000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 452004 + ... + 452196.

It is an arithmetic number, because the mean of its divisors is an integer number (1936508).

Almost surely, 287255300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87255300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139428576).

87255300 is an abundant number, since it is smaller than the sum of its proper divisors (191601852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87255300 is a wasteful number, since it uses less digits than its factorization.

87255300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 87255300 is about 9341.0545443221. The cubic root of 87255300 is about 443.5377666587.

The spelling of 87255300 in words is "eighty-seven million, two hundred fifty-five thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 25 30 33 44 50 55 60 66 75 100 110 132 137 150 165 193 220 274 275 300 330 386 411 548 550 579 660 685 772 822 825 965 1100 1158 1370 1507 1644 1650 1930 2055 2123 2316 2740 2895 3014 3300 3425 3860 4110 4246 4521 4825 5790 6028 6369 6850 7535 8220 8492 9042 9650 10275 10615 11580 12738 13700 14475 15070 18084 19300 20550 21230 22605 25476 26441 28950 30140 31845 37675 41100 42460 45210 52882 53075 57900 63690 75350 79323 90420 105764 106150 113025 127380 132205 150700 158646 159225 212300 226050 264410 290851 317292 318450 396615 452100 528820 581702 636900 661025 793230 872553 1163404 1322050 1454255 1586460 1745106 1983075 2644100 2908510 3490212 3966150 4362765 5817020 7271275 7932300 8725530 14542550 17451060 21813825 29085100 43627650 87255300